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48results about How to "Prevent copying" patented technology

Trademark identification method and system based on anti-counterfeiting codes

The invention provides a trademark identification method and system based on an anti-counterfeiting code, and relates to the technical field of anti-counterfeiting identification, and the method comprises the steps: obtaining a to-be-identified trademark image, carrying out the preprocessing, generating a corresponding anti-counterfeiting code through employing an anti-counterfeiting code generation algorithm based on chaotic encryption, and embedding the generated anti-counterfeiting code into a standard trademark image, obtaining a trademark image carrying an anti-counterfeiting code, and carrying out code positioning on the trademark image to obtain a standardized anti-counterfeiting code image; decoding the standardized anti-counterfeiting code image to obtain an original bit stream of the anti-counterfeiting code, and verifying the validity of the original bit stream through Hash verification to obtain an anti-counterfeiting code verification result; and judging the authenticity confidence coefficient of the to-be-identified trademark image by using a pre-trained trademark authenticity judgment model, and outputting a final trademark identification result based on the anti-counterfeiting code verification result and the authenticity confidence coefficient of the to-be-identified trademark image in combination with a pre-acquired multi-source heterogeneous trademark identification evidence.
Owner:JIANGSU NUOZHEN ANTI COUNTERFEITING TECH CO LTD

Virtual machine thermal migration system, method and device used in DPU environment and storage medium

The invention provides a virtual machine thermal migration system used in a DPU (Data Processing Unit) environment, which comprises a source host on which a source Hypervisor is operated, and the source Hypervisor manages a source virtual machine to be migrated; the destination host is used for establishing a destination virtual machine in response to the live migration instruction of the source host and receiving data to be migrated; the agent module is deployed in a source virtual machine managed by the source Hypervisor and is used for receiving an instruction of the source Hypervisor and collecting memory information of the source virtual machine, and the memory data comprises information of an unused memory; and the thermal migration control module is used for controlling a thermal migration process, including initiating a thermal migration instruction, marking memory data to be migrated according to information of an unused memory, executing data migration operation, monitoring a thermal migration process, and performing thermal migration rollback when migration is abnormal. The invention further discloses a corresponding method, equipment and a storage medium. By implementing the application, the efficiency, stability and service continuity of thermal migration are improved.
Owner:SHENZHEN JAGUAR MICROSYSTEMS CO LTD

Hairy crab anti-counterfeiting traceability method and system and crab buckle

The invention discloses a hairy crab anti-counterfeiting traceability method, a hairy crab anti-counterfeiting traceability system and a hairy crab clasp. The hairy crab anti-counterfeiting traceability method comprises the following steps: inputting initial information of hairy crabs into a hairy crab anti-counterfeiting traceability system; wherein the initial information comprises product names, producing areas, offspring seeds, bait composition, growth ecological environment parameters and fishing time of the hairy crabs; generating a unique anti-counterfeiting traceability code according to the initial information of each hairy crab, wherein the anti-counterfeiting traceability code is associated with the initial information of the corresponding hairy crab in the hairy crab anti-counterfeiting traceability system; the anti-fake traceability code is stored in a chip of a crab buckle, and the crab buckle is bound to a hairy crab corresponding to the anti-fake traceability code; and in the transportation and sales process of the hairy crabs, generating transportation and sales information, inputting the transportation and sales information into the hairy crab anti-counterfeiting traceability system, and associating the transportation and sales information with the anti-counterfeiting traceability codes of the corresponding hairy crabs. According to the invention, effective anti-counterfeiting traceability can be carried out on each hairy crab, so that counterfeit products are effectively prevented from flowing into the market.
Owner:WUXI GRANDTAG ELECTRONICS

Method and system for encrypting read-write card based on NFC and storage medium

PendingCN119599040Aprevent copyingSatisfy the needs of battery replacementDigital data protectionCo-operative working arrangementsElectrical batteryEngineering
The invention relates to a read-write card encryption method and system based on NFC and a storage medium, the read-write card encryption method based on NFC comprises the following steps: S1, opening an antenna sending field, and searching an NFC card; s2, reading the ID of the NFC card, and calculating a key based on the ID of the NFC card, the encrypted character string and the sector ID; s3, writing the key into a sector, and setting reading control to complete encryption; s4, when the battery replacement cabinet monitors the NFC card in the battery, identifying the NFC card in the battery; s5, solving a secret key based on the ID of the NFC card, the encrypted character string and the sector ID, and randomly selecting a sector for testing and reading; and S6, if the sector test is successfully read, finding the battery with the highest electric quantity in the bin of the battery replacement cabinet, and opening the bin door to return the battery. Through communication with the NFC card in the battery, the battery replacement requirement of a user can still be met when the platform crashes, the user can replace the battery without carrying a mobile phone, the sector is encrypted through the secret key, and the safety is improved.
Owner:SHENZHEN DUDU IOTIAN TECH CO LTD

Backup recovery method and device of virtual machine, computer equipment, readable storage medium and program product

The invention relates to a backup recovery method and device of a virtual machine, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: in response to any operation request for a backup set of a target virtual machine, starting a backup virtual machine in a host machine; the target virtual machine is a virtual machine to be backed up in the host machine; taking the virtual disk file in the backup set as a block device of the backup virtual machine, and loading the block device in the backup virtual machine; after the loading processing is completed, carrying out mounting processing on a virtual disk corresponding to the block device in a backup virtual machine, so that the backup virtual machine generates mounting information of the virtual disk; in response to a recovery request for the target file, recovering the target file by backing up the virtual machine and the mounting information; the target file is a file of the target virtual machine. By adopting the method, the backup recovery reliability of the virtual machine can be improved.
Owner:GUANGZHOU DINGJIA COMPUTER TECHNOLOGY CO LTD

Multi-chip storage and calculation integrated calculation device oriented to large language model

The invention provides a large language model-oriented multi-core particle storage and calculation integrated calculation device, which is characterized by comprising an IO core particle and a plurality of PIM core particles, and is characterized in that the IO core particle comprises an embedding module used for generating an embedding vector and adding a position code; the IO side data communication module cuts the to-be-calculated vector, distributes the to-be-calculated vector to each PIM core particle, and receives a local calculation feedback vector sent by each PIM core particle; the synchronization module is used for synchronizing each local calculation feedback vector and executing residual addition and layer normalization calculation; the PIM core particle comprises a PIM side data communication module, a token memory and a token side data communication module; a global memory; the plurality of PIM-bank modules store network weights of large language models and are used for executing vector-matrix multiplication according to the local calculation vectors to generate corresponding local calculation feedback vectors; and a softmax module. In short, the method can improve the reasoning speed of the large language model.
Owner:FUDAN UNIVERSITY +1

Cluster scheduling method and device, computer equipment, readable storage medium and program product

The invention relates to a cluster scheduling method and device, computer equipment, a computer readable storage medium and a computer program product, and relates to the technical field of cloud native. According to the invention, under the condition of not changing the structure of the cluster and the scheduling system thereof, the influence of the scale expansion of the cluster on the cluster scheduling performance can be effectively dealt with. The method comprises the following steps: acquiring a target job, finding out a target node meeting a running condition of the target job in a plurality of partitions according to a partition priority sequence and node states and node snapshot data of nodes, and scheduling the target job to the target node, and updating node snapshot information of the target node in the node snapshot data and node real-time data of the target node in the node real-time data according to a scheduling result of the target node.
Owner:CHINA TELECOM CLOUD TECH CO LTD

Electronic signature generation and verification method

The invention relates to the technical field of computer processing, and provides an electronic signature generation and verification method which comprises the following steps: acquiring an initial file; performing anti-counterfeiting operation based on the initial file to obtain first signature information; embedding the first signature information into the initial file to obtain a first intermediate file; performing signature operation on the first intermediate file based on a digital certificate to obtain a first signature value; embedding the first signature value into the first intermediate file as second signature information to obtain a second intermediate file; performing signature operation on the second intermediate file based on credible timestamp information to obtain a second signature value; and embedding the second signature value into the second intermediate file as third signature information to obtain a target file, according to the embodiment of the invention, through a multi-level security mechanism, the legality and anti-counterfeiting capability of the file signature can be effectively ensured, and the file is prevented from being forged, tampered, copied or illegally used.
Owner:BEIJING SHENZHOU LOONGSON ANCHUANG INFORMATION TECH CO LTD

Logistics path optimization system and method based on artificial intelligence

With the rapid development of globalization and internet economy, the logistics industry faces double challenges of improving the transportation efficiency and reducing the operation cost. The invention provides a logistics path optimization system and method based on an artificial intelligence technology, and aims to realize intelligent planning and dynamic adjustment of a logistics transportation path through deep learning and an operation planning optimization algorithm. The system can collect and analyze multi-dimensional data in real time, including traffic conditions, weather information, cargo characteristics and the like, so as to calculate an optimal transportation scheme under various constraint conditions. In addition, the system has a real-time adjustment function, can quickly respond and optimize path selection according to latest traffic information and environment change, and ensures that goods are delivered to a destination on time and efficiently. According to the method, the timeliness and economy of logistics transportation are improved, and the environmental sustainability of the logistics industry is remarkably improved by reducing unnecessary driving mileage and energy consumption. The application of the system is expected to bring remarkable economic benefits to logistics enterprises and promote the technical progress and transformation and upgrading of the whole industry.
Owner:NANJING KEXUN GRAIN IND TECH CO LTD

A database log archiving method, device, equipment and medium

PendingCN122364165Aprevent copyingavoid reading and writingEngineeringDirectory
This invention relates to the field of data processing and discloses a database log archiving method, apparatus, device, and medium, comprising: identifying a target redo log file to be archived from the database; creating a preliminary redo log file with the same attributes as the target redo log file and empty content within the same logical disk as the target redo log file; moving the target redo log file to a preset archiving directory located within the same logical disk via MV operations; changing the filename and storage path of the preliminary redo log file to the original filename and storage path of the target redo log file via MV operations; and mounting the revised preliminary redo log file to the database. This invention solves the problems of high I / O consumption and low archiving efficiency in existing database log archiving technologies.
Owner:SHENZHEN INST OF COMPUTING SCI

IP encryption method based on ZYNQ

The invention provides an IP encryption method based on ZYNQ. The method comprises the following steps that an integrated ARM processing system issues licence data to an encryption verification module through a GP port; a device ID acquisition module, a key generation module and a key verification module are arranged in the encryption verification module; the device ID acquisition module is powered on to automatically acquire the device ID, supplements the device ID to 128 bits and outputs the device ID to the key generation module; the key generation module calculates a product key according to the 128-bit device ID and an encryption algorithm; the secret key verification module comprises a logical operation unit and a logical judgment unit; the binary single-bit control signal is interconnected with a target IP; and the target IP enables or disables the IP according to the value of the binary single-bit control signal. According to the method, the encryption of the IP is realized, and the IP core is prevented from being copied or used by an unauthorized third party, so that the design and intellectual property are effectively protected.
Owner:HUBEI SANJIANG AEROSPACE HONGFENG CONTROL

Dynamic fluorescent anti-counterfeit label material as well as preparation method and application thereof

PendingCN119331619Aprevent forgeryprevent copyingStampsLuminescent compositionsSodium fluorideYtterbium chloride
The invention relates to the technical field of fluorescent anti-counterfeit materials, and particularly discloses a dynamic fluorescent anti-counterfeit label material as well as a preparation method and application thereof. The preparation method of the dynamic fluorescent anti-counterfeit label material comprises the following steps: mixing yttrium chloride, ytterbium trichloride, erbium chloride and sodium fluoride, and grinding to obtain a mixture; and calcining the mixture to obtain the dynamic fluorescent anti-counterfeit label material. The percentage of ytterbium trichloride in the mixture is 10-50 mol%, and the percentage of erbium chloride in the mixture is 1-5 mol%. By adjusting the proportion of the ytterbium (Yb) element and the erbium (Er) element in the raw materials, the prepared dynamic fluorescent anti-counterfeit label material can show different luminescence characteristics under irradiation of lasers with different powers, realizes luminescence color conversion from red to green, can be used for manufacturing complex anti-counterfeit patterns or codes, and realizes dynamic anti-counterfeit which is difficult to copy.
Owner:SHENZHEN TECH UNIV

ETC data rights confirmation method and device based on blockchain technology

ActiveCN113988853BGuaranteed confidentialityprevent copying
The embodiment of the present invention discloses a method and device for confirming the rights of ETC data based on blockchain technology, the method comprising: obtaining transaction flow data of ETC transactions; encrypting the transaction flow data using the encryption key corresponding to the road section owner; signing the encrypted transaction flow data using the identity certificate corresponding to the road section owner; uploading the signed transaction flow data to the blockchain platform, so that the blockchain platform packages the signed transaction flow data into data blocks and adds the data blocks to the blockchain after consensus among the blockchain nodes. The present invention solves the technical problem of the prior art that it is difficult to confirm the rights of ETC transaction flow data.
Owner:BEIJING CCCC GUOTONG INTELLIGENT TRANSPORTATION SYST TECH CO LTD

Retail environment digital media transmission system based on streaming media stream pushing middleware

The invention discloses a retail environment digital media transmission system based on streaming media push-flow middleware, which comprises a signaling system streaming media AI identification technology, a signaling system streaming media encryption technology and signaling system streaming media player software, and is characterized in that AI identification verification is carried out on media content pictures of a player through the signaling system streaming media AI identification technology; therefore, the digital media content can be identified to meet relevant national laws, and illegal content spreading is avoided. The invention has the following beneficial effects: network dependence: (MECT) signaling system streaming media encryption caching technology can store the encrypted copy of the played content on the user equipment, so that even if the network condition is temporarily poor, the user can continue to watch the cached content, and the playing interruption caused by network fluctuation is reduced; the encryption of the cached content can ensure that an unauthorized user cannot access the media content in the cache even if the equipment is lost or stolen, so that the watching experience of the user is protected.
Owner:SHANGHAI MINGQI NETWORK TECH CO LTD

A firmware storage method, firmware reading method, device, chip processor and storage medium

ActiveCN114327518Bprevent copyingavoid crackingEngineeringKey storage
The embodiments of the present invention provide a firmware storage method, a firmware reading method, a device, a chip processor and a storage medium, and relate to the field of chip technology. Applied to a chip processor, the chip includes a configuration area, an operation area and a backup area. The chip processor performs a read or write operation on the configuration area, the operation area and the backup area, and the configuration area is prohibited from being read by an external device. The method includes: when the chip is connected to a burning tool for communication, erasing the data stored in the operation area, and obtaining the original firmware burned by the burning tool. Automatically randomly generate a key and store the key in the configuration area. Based on the key and the compression algorithm built into the chip processor, perform compression and encryption operations on the original firmware to obtain a compressed file. The original firmware is stored in the operation area, and the compressed file is stored in the backup area. In this way, by setting the chip processor, the backup area and the operation area to store the firmware, the problem of the chip being cracked can be effectively prevented.
Owner:GUANGZHOU SIRUI SEMICON CO LTD

Multi-roller-shutter-door control device and warehousing system

The invention discloses a multi-roller-shutter-door control device and a warehousing system. In the device, a wireless control module is arranged on a cargo transfer trolley and comprises an operation unit and a transmitting unit; the operation units are in one-to-one correspondence with the groups of the wireless receiving modules, and adjust own states according to the operation of a driver; the transmitting unit is connected with the operation unit and transmits a corresponding wireless control signal according to the state of the operation unit. The wireless receiving module is arranged at the position of the corresponding roller shutter door, connected with a driving device of the roller shutter door and used for receiving the corresponding wireless control signal and controlling opening and closing of the roller shutter door, control over the roller shutter door is achieved, on one hand, the key is prevented from being lost and copied due to separation of people and the key, and the system safety is improved. On the other hand, the relative distance between the wireless receiving modules in the same group is set to be larger than two times of the control distance, control over the whole group of wireless receiving modules by the operation units is achieved, the number of the operation units in the wireless control module is reduced, and the operation difficulty of a driver is lowered.
Owner:HUANENG CHONGQING LUOWEN POWER CO LTD +1

A multi-party cross-domain authentication method in a blockchain product anti-counterfeiting system

ActiveCN117788011BAutomatically calculate hashesprevent copyingDigital data protectionCo-operative working arrangements
The present invention provides a multi-party cross-domain authentication method in a blockchain product anti-counterfeiting system, which includes building a traceability anti-counterfeiting system; after the product manufacturer joins the traceability anti-counterfeiting alliance chain, the system parameters defined on the chain will be used to select a random number as a private key in the anti-counterfeiting traceability system; PK is calculated as the public key in the anti-counterfeiting traceability system and the public key is uploaded to the blockchain; after the product manufacturer joins the traceability anti-counterfeiting system, it is used as one of the nodes on the traceability anti-counterfeiting alliance chain; the invited participants determine the private key and public key in the anti-counterfeiting traceability system according to the system parameters, and upload the public key to the blockchain; after ensuring that the product manufacturer and its cooperative participants have entered the same blockchain channel, the anti-counterfeiting traceability of the product is established. The present invention realizes the identity authentication of multiple participants in the anti-counterfeiting system based on blockchain technology, thereby realizing a reliable anti-counterfeiting function, and has good application prospects.
Owner:SUQIAN LIFENG TECH CO LTD

A tracing method, device, equipment and medium integrating digital watermark

The present invention relates to a traceability method, device, equipment and medium integrated with digital watermark, which belongs to the field of anti-counterfeiting technology and is used to solve the problem of low anti-counterfeiting ability and low credibility of traceability identification products in the prior art. The technical solution of the present invention mainly includes: obtaining product information, taking the product information as plain text, encrypting the plain text through random multiple digital signature technology to obtain the digital signature of the plain text; obtaining the original image, inputting the original image and the digital signature into a diffusion generation model integrated with a cross-attention module to form a digital watermark image; performing loss simulation based on the digital watermark image to form a loss image set; inputting the loss image set into a digital watermark decoder for training, and extracting the digital signature from the digital watermark image through the trained digital watermark decoder; and verifying the digital signature.
Owner:BEIJING TECH & BUSINESS UNIV

IC card encryption and decryption method and intelligent door lock system

The invention discloses an IC card encryption and decryption method and an intelligent door lock system. The encryption and decryption method of the IC card is used for encrypting the IC card and decrypting the IC card on card swiping equipment, the IC card comprises a data storage module and an encryption module, and the encryption module is used for verifying the authority of reading the data storage module; the data storage module stores a user ciphertext, and the user ciphertext is obtained by encrypting user data through a first encryption algorithm; a decryption program is stored in the card swiping equipment; the decryption program comprises a first decryption algorithm and a second decryption algorithm; and when the IC card enters the card swiping range of the card swiping equipment, the first decryption algorithm decrypts the encryption module to obtain the authority of reading the data storage module, and the second decryption algorithm decrypts the user ciphertext to obtain the user data. According to the invention, even if the storage of the data storage module of the IC card is cracked, the read user data is still the ciphertext, so that the algorithm of the card is effectively prevented from being calculated according to the user data.
Owner:GLOBAL CARD SYSTEMS CO LTD

Anti-cracking method of chip, security chip and program product

The embodiment of the invention provides an anti-cracking method of a chip, a security chip and a program product. The method comprises the steps of generating initial protection data of a chip through a protection data generator, and storing the initial protection data in a one-time storage area; obtaining storage protection data of the firmware based on the initial protection data; wherein the storage protection data is temporarily stored in an RAM storage area in a chip operation stage; and the chip encrypts firmware data generated by the upper computer by using the storage protection data, and writes the encrypted firmware data into a preset storage position of the chip. The method is used for achieving the effect of improving the safety of chip protection.
Owner:HANGZHOU SHUOTIAN TECH CO LTD

Shallow cache for content replication

ActiveCN112384905Bprevent copyingFile system administrationFile access structuresContent replicationParallel computing
Embodiments relate to efficiently copying data from a source storage space to a target storage space. The storage spaces share a common namespace of paths at which content units are stored. A shallow cache is maintained for the target storage space. Each entry in the cache includes a hash of a content unit in the target storage space and an associated hierarchical path in the target storage space at which the corresponding content unit is stored. When a set of content units in the source storage space is copied to the target storage space, any content unit with a hash in the cache is copied from one of the associated paths in the cache, thereby avoiding having to copy content from the source storage space.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC

A video residual data processing method and system

The invention discloses a video residual data processing method and system, belonging to the field of H.264 video compression implementation and hardware technology, comprising: applying for residual storage space; completing the big-endian conversion of the residual according to the high-low bit switching mode of four bytes; calculating the offset position according to the small block sequence number, and storing the residual in the specified memory index; setting the address and length of the storage space and notifying the VCA register; releasing the occupied mark lock, and notifying the VCA that the data preparation is complete; the VCA processing thread obtains the storage space use mark lock, and reads the residual for encoding; the video residual data processing method and system, by using a shared memory mode, before the residual data calculation result is sent to the VCA, it is placed in the memory in advance according to the layout order and end order requirements required by the VCA, and is directly set to the input end of the VCA, avoiding the data copying process twice, thereby reducing the data processing time.
Owner:NANJING PENGTITANIUM STORAGE SYSTEM CO LTD

Anti-copy system and anti-copy method

The present invention relates to the field of single-chip microcomputer technology, and discloses an anti-copy system and an anti-copy method, the method comprising obtaining the SN code of the burning program and the SN code of the burned single-chip microcomputer, performing a first check, and obtaining a first check result; when the first check result is that the check is correct, the burning program writes data into the FLASH of the burned single-chip microcomputer for a second check and data preservation and backup, and obtains a second check result; if the second check result is that the check is correct, the copy is successful, otherwise it enters a safe mode; according to a preset time, a third check is performed on the data that has been successfully copied in the burned single-chip microcomputer, and a third check result is obtained; if the third check result is that the check is correct, the control program runs normally, and if an error occurs, the safe mode is entered. The anti-copy scheme provided by the present invention greatly improves the security of data and the reliability of the system, and realizes effective anti-copy protection.
Owner:深圳市云希谷科技有限公司

A kind of silk screen fluorescent carbon dot invisible anti-counterfeiting ink and preparation method thereof

The present invention relates to a screen fluorescent carbon dot invisible anti-counterfeiting ink and a preparation method thereof, and belongs to the field of anti-counterfeiting technology. The ink comprises the following components: green carbon quantum dots, acrylic resin, rosin resin, biomass dye, ethanol, defoamer and dispersant. The ink preparation process of the present invention is simple, suitable for screen printing, colorless under sunlight, and emits bright green under ultraviolet light. It also has the advantages of good adaptability to screen printing and green and environmentally friendly materials, and can be used for invisible ink, information identification and anti-counterfeiting.
Owner:SICHUAN KUANZHAI PRINTING CO LTD

Firmware download link protection method, device, equipment and storage medium

The present application relates to a firmware download link protection method, device, equipment and storage medium, which are applied in the field of data security, including generating a random number at startup and power-on, wherein the random number is randomly generated by the receiving device; using the random number, a preset fixed key and a preset handshake confirmation information to complete a handshake operation with a downloader; receiving dynamically encrypted firmware information, and decrypting the dynamically encrypted firmware information to generate plaintext firmware data, wherein the dynamically encrypted firmware information is generated by the downloader after dynamically encrypting the firmware information to be transmitted, and the downloader encrypts the firmware information to be transmitted in a manner corresponding to the receiving device decrypts the dynamically encrypted firmware information. The technical effect of the present application is: enhancing the security of data content on a data communication link and preventing data content from being stolen or copied.
Owner:WUXI GUOXINWEI HIGH-TECH CO LTD

A method, system, device and medium for accelerating file reading based on Kubernetes

ActiveCN115563065BAvoid repeated purgingprevent copyingFile metadata searchingMachine learningData setIdle time
The application belongs to the technical field of artificial intelligence, and particularly relates to a method for accelerating file reading based on Kubernetes, which comprises the following steps: obtaining a training task; adding a data set of the training task to a cache file system; increasing the reference times of files in the data set of the cache file system and updating the latest time dynamics; mounting the cache file system to a POD container; reading the data set by establishing a script in the POD container and performing task training on the read data set; reducing the reference times of files in the data set after training; and judging the reference times of the files in the data set after training, and cleaning the corresponding files when the reference times are lower than a preset number threshold or the idle time is greater than a preset time threshold. The application mainly solves the problem of slow data reading caused by low-speed storage in the model training process.
Owner:CHONGQING CHANGAN TECH CO LTD

Cross-domain model sharing method based on block chain

PendingCN119474036AProtect data assetsConvenient cross-domain collaborative simulationDigital data information retrievalDigital data protectionDomain modelTheoretical computer science
The invention discloses a cross-domain model sharing method based on a block chain, which is applied to a model provider and comprises the following steps: encrypting an FMU model to obtain an encrypted FMU model; the encrypted FMU model and the decryption key are uploaded to a block chain; and carrying out on-demand authorization on the decryption key by using a key authorization management module, and determining a use white list of the FMU model. According to the method, sharing distribution and authorization application of the model can be carried out based on the block chain, model data assets of a model provider are protected, and a user can conveniently carry out cross-domain collaborative joint simulation.
Owner:ZHIYING FUTURE (XIAN) INFORMATION TECH CO LTD

Antibacterial agent modified nano silicon dioxide modified polylactic acid film and preparation method thereof

The invention relates to the technical field of polylactic acid, and discloses an antibacterial agent modified nano silicon dioxide modified polylactic acid film, nano silicon dioxide reacts with succinyl chloride to obtain acylating chlorinated silicon dioxide, the acylating chlorinated silicon dioxide reacts with polypropylene carbonate to obtain polypropylene carbonate modified silicon dioxide, and the polypropylene carbonate modified silicon dioxide reacts with toluene-2, 4-diisocyanate to obtain the antibacterial agent modified nano silicon dioxide modified polylactic acid film. The preparation method comprises the following steps: carrying out reaction on isocyanated polypropylene carbonate modified silicon dioxide and polylactic acid to obtain isocyanated polypropylene carbonate modified silicon dioxide, further carrying out reaction on the isocyanated polypropylene carbonate modified silicon dioxide and ciprofloxacin, and mixing the isocyanated polypropylene carbonate modified silicon dioxide and polylactic acid to obtain the antibacterial agent modified nano silicon dioxide modified polylactic acid film. The ciprofloxacin group can inhibit the activity of gyrase in bacterial cells, prevent the replication and transcription process of bacterial DNA, further prevent the growth and reproduction of bacterial cells, and finally inactivate bacteria, so that the composite polylactic acid film is endowed with excellent antibacterial performance.
Owner:HANDAN TIXI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

HTLV-1 virus inhibition drug and application thereof

The invention relates to an HTLV-1 virus inhibition drug and application thereof, and belongs to the technical field of virus biology. Specifically, the tegillarca granosa active peptide is extracted from the tegillarca granosa through acid pretreatment and pepsase, so that the tegillarca granosa active peptide is obtained. Experimental results show that the tegillarca granosa active peptide can significantly inhibit proliferation of HTLV-1 positive cell strains (such as ATL-2) within the concentration range of 50-400 [mu] g / mL, and meanwhile expression of Tax and Gag genes in HTLV-1 viruses is effectively reduced. In addition, the prepared tegillarca granosa active peptide has no obvious toxicity to a normal human cell strain (HEK293), which indicates that the tegillarca granosa active peptide has good safety and selectivity. Therefore, the active peptide can be used as a potential medicine for treating HTLV-1 virus related diseases (such as adult T cell leukemia / lymphoma).
Owner:JIAMUSI UNIVERSITY

A digital watermark-based data processing method for certificate anti-counterfeiting

The present invention relates to the field of machine learning technology, and in particular to a method for processing certificate anti-counterfeiting data based on digital watermarks. The method comprises the following steps: obtaining certificate image data, performing complex feature extraction and encoding processing and hybrid and digital watermark embedding protection processing on the certificate image data, generating mixed domain watermark embedded image data, performing multi-view feature fusion extraction processing and complex pattern and anomaly detection processing on the mixed domain watermark embedded image data, generating certificate pattern recognition result data, performing distributed blockchain anti-counterfeiting verification and consensus processing and anti-fraud and data analysis processing on the pattern recognition result data, and generating intelligent anti-fraud model data. The present invention can embed the designed watermark pattern and rules into the certificate image. The certificate digital watermark data generated in this way can be used to verify the authenticity of the certificate, ensure that the certificate has not been tampered with or forged, thereby providing a more reliable anti-counterfeiting effect.
Owner:HUI ZHOU SHI YOU YOU WANG LUO KE JI YOU XIAN GONG SI